The invention relates to the related technical field of automobiles, and discloses a
grease quantifying device which comprises a
grease injection mechanism and a quantitative adjusting mechanism. The
grease injection mechanism comprises a cavity body, a
piston assembly arranged in the cavity body in a sliding mode, a hydraulic
electric control valve connected with the cavity body and a cavity end cover fixed to the front end of the cavity body, the interior of the cavity body is divided into a first cavity and a second cavity by the
piston, and an oil inlet and an oil outlet are formed in the cavity end cover; the quantitative adjusting mechanism comprises a bracket, a driving mechanism fixed on the bracket, a screw rod in transmission connection with the driving mechanism, a fixed sleeve in threaded connection with the screw rod, and a
plunger chuck arranged in the fixed sleeve in a sliding manner, and the fixed sleeve is fixedly connected with the rear end of the cavity body; and the front end of the
plunger chuck is connected with a
piston rod, and the rear end of the
plunger chuck abuts against the screw rod. The grease quantifying device is high in grease injection precision, low in cost, small in size, stable in output and capable of meeting the requirements of a grease injection
system for quantification, high speed and controllable and adjustable grease injection range.